#include <unistd.h>
#include <iostream>
#include <string>
#include <cerrno>
using namespace std;

#include <boost/scoped_ptr.hpp>
#include <boost/scoped_array.hpp>
using namespace boost;

#include "mcsconfig.h"

#include "socktype.h"

#include "exceptclasses.h"

#include "socketio.h"

#include "bytestream.h"
#include "messagequeue.h"
using namespace messageqcpp;

#include "rowgroup.h"
using namespace rowgroup;

namespace qfe
{
void processReturnedRows(MessageQueueClient* mqc, SockType fd)
{
  scoped_ptr<MessageQueueClient> cleaner(mqc);
  SBS sbs;
  sbs = mqc->read();
  // cerr << "got a bs of " << sbs->length() << " bytes" << endl;

  RowGroup rg;
  rg.deserialize(*sbs);

  // cerr << "got a base rowgroup with rows of " << rg.getRowSize() << " bytes" << endl;
  // cerr << rg.toString() << endl;

  ByteStream bs;
  ByteStream::quadbyte tableOID = 100;
  bs.reset();
  bs << tableOID;
  mqc->write(bs);

  sbs = mqc->read();
  // cerr << "got a bs of " << sbs->length() << " bytes" << endl;
  RGData rgd;
  rgd.deserialize(*sbs, true);
  rg.setData(&rgd);
  // cerr << "got a rowgroup with: " << rg.getRowCount() << " rows" << endl;

  socketio::writeString(fd, "OK");
  Row r;

  while (rg.getRowCount() > 0)
  {
    rg.initRow(&r);
    rg.getRow(0, &r);
    string csv;
    bs.reset();

    for (unsigned i = 0; i < rg.getRowCount(); i++)
    {
      csv = r.toCSV();
      bs << csv;
      r.nextRow();
    }

    // cerr << "writing " << bs.length() << " bytes back to client" << endl;
    SockWriteFcn(fd, bs.buf(), bs.length());

    bs.reset();
    bs << tableOID;
    mqc->write(bs);

    sbs = mqc->read();
    // cerr << "got a bs of " << sbs->length() << " bytes" << endl;
    rgd.deserialize(*sbs, true);
    rg.setData(&rgd);
    // cerr << "got a rowgroup with: " << rg.getRowCount() << " rows" << endl;
  }

  tableOID = 0;
  bs.reset();
  bs << tableOID;
  mqc->write(bs);

  // sync with the client on end-of-results
  SockWriteFcn(fd, &tableOID, 4);
  SockReadFcn(fd, &tableOID, 4);
}

}  // namespace qfe
